ISRO launches India's HysIS satellite and 30 foreign satellites

Sriharikota/Andhra Pradesh: Indian rocket Polar Satellite Launch Vehicle (PSLV) jetted off successfully with country's Hyperspectral Imaging Satellite (HysIS) and 30 other foreign satellites from here on Thursday.

The Hyperspectral Imaging Satellite (HysIS) is an earth observation satellite which collects and processes information from across the electromagnetic spectrum.

The motive to launch HysIS is to study the earth's surface in visible, near infrared and shortwave infrared regions of the electromagnetic spectrum. Which can also be used for strategic purposes.

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The PSLV-CA (Core Alone) version (without its usual strap-on motors), standing 44.4 metres tall and weighing about 230 tonne, took off at 9.58 a.m. from the first launch pad here, spewing thick orange flame.

The PSLV rocket is a four stage launch vehicle with alternating solid and liquid stages/engines. It carried 380 kg HysIS and 30 other satellites together weighing 261.5 kg.

According to the Indian Space Research Organisation (ISRO), the entire mission will be completed in about 112 minutes after the rocket's lift off.

Sixteen minutes into the flight, the rocket's fourth stage/engine will be switched off.

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Just over 17 minutes into the flight, the PSLV rocket will place the HysIS satellite with a mission life span of five years in 636 km polar sun synchronous orbit.

After that the rocket will be brought to a lower altitude of 503 km from 642 km.

Post ejection of HysIS, the rocket's fourth stage will be restarted at 59.65 minutes after the lift off. Later, the engine will be switched off and on twice before the final passenger is put into orbit about 112.79 minutes after the rocket's lift off.

The ISRO had earlier carried out a satellite mission for over two hours in January.

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The co-passengers of HysIS include one micro and 29 nano satellites from eight different countries. All these satellites will be placed in a 504 km orbit.

In is to be mentioned that out of 30 satellites, 23 alone are from US, the rest are from Australia, Canada, Columbia, Finland, Malaysia, the Netherlands and Spain.